Crude oil inventories rose by 7.36 million barrels, exceeding analyst forecasts of a 120,000-barrel build, and contributing to a bearish market outlook.
This increase, alongside record US production and IEA warnings of a global supply overhang, has spooked traders.
The American Petroleum Institute (API) reported the large inventory build for the week ending October 10.
Analysts had forecast a much smaller 120,000-barrel build for the week.
Author's summary: Crude oil inventories unexpectedly increased by 7.36 million barrels.